Patents Examined by Lisa M. Schull
  • Silicon aluminum oxynitride material containing boron nitride
    Patent number: 5030598
    Abstract: A small amount of boron nitride is added to a mixture of silicon nitride, aluminum nitride and yttrium oxide, prior to sintering, to increase modulus of rupture and/or elastic modulus of the sintered material.
    Type: Grant
    Filed: June 22, 1990
    Date of Patent: July 9, 1991
    Assignee: GTE Products Corporation
    Inventor: Martin Y. Hsieh